legislation_cosponsors: 112-hr-6572, T000266

Cosponsors for tracked legislation. Distinguishes original cosponsors (signed on at introduction) from later additions. Linked to congress_members via bioguide_id.

This data as json

bill_id	bioguide_id	full_name	party	state	sponsorship_date	is_original_cosponsor
112-hr-6572	T000266	Rep. Tierney, John F. [D-MA-6]	D	MA	2012-12-05	0